450646220 has 24 divisors (see below), whose sum is σ = 946958208. Its totient is φ = 180144000.

The previous prime is 450646193. The next prime is 450646243. The reversal of 450646220 is 22646054.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29765 + ... + 42275.

It is an arithmetic number, because the mean of its divisors is an integer number (39456592).

Almost surely, 2^450646220 is an apocalyptic number.

It is an amenable number.

450646220 is an abundant number, since it is smaller than the sum of its proper divisors (496311988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450646220 is a wasteful number, since it uses less digits than its factorization.

450646220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14321 (or 14319 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 450646220 is about 21228.4295226943. The cubic root of 450646220 is about 766.6760750788.

The spelling of 450646220 in words is "four hundred fifty million, six hundred forty-six thousand, two hundred twenty".